Organic electroluminescence display device

ABSTRACT

An organic electroluminescence display device has a barrier structure that is placed on an upper electrode. The barrier structure has a first organic sealing layer disposed between a first inorganic sealing layer and a second inorganic sealing layer. The first organic sealing layer is divided by the second inorganic sealing layer with respect to each of a plurality of partial areas that form a display area in a plan view and is thicker than a bank having a shape that rises upward.

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority from Japanese applicationJP2016-039426 filed on Mar. 1, 2016, the content of which is herebyincorporated by reference into this application.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an organic electroluminescence displaydevice.

2. Description of the Related Art

In an organic electroluminescence display device, each pixel is providedwith a lower electrode, and a bank that separates the pixels from oneanother is formed on outer peripheral portions of the lower electrodes.Organic layers including a light emitting layer, a charge transportlayer, and other layers are formed above the bank and the lowerelectrodes, and an upper electrode is formed above the organic layers(organic layers including light emitting layer, charge transport layer,and other layers are hereinafter referred to as light emitting organiclayer). In many organic electroluminescence display devices, a sealinglayer covers the upper electrode to prevent moisture from penetratingthe light emitting organic layer. In JP 2013-134989 A, JP 2014-154450 A,and JP 2014-179278 A, a sealing layer made of an organic material isformed between two sealing layers made of an inorganic material (asealing layer made of an inorganic material is hereinafter referred toas an inorganic sealing layers, and a sealing layer made of an organicmaterial is hereinafter referred to as an organic sealing layer).According to the sealing layers described above, even in a case where ahole is produced in the upper inorganic sealing layer due, for example,to foreign matter trapped in the step of manufacturing the organicelectroluminescence display device, the lower inorganic sealing layercan prevent moisture having intruded through the hole from penetratingthe light emitting organic layer.

SUMMARY OF THE INVENTION

In a structure in which an organic sealing layer formed between twoinorganic sealing layers is continuously formed over an entire displayarea, when moisture penetrates the organic sealing layer through a holeproduced in the upper inorganic sealing layer, the moisture possiblyspreads widely in the organic sealing layer. Therefore, in a case wherea hole resulting from foreign matter is produced in the upper inorganicsealing layer and a hole resulting from foreign matter is also producedin the lower inorganic sealing layer, and even if the positions of thetwo holes are separate from each other by a large distance, the moisturehaving intruded through the hole in the upper inorganic sealing layerspreads widely in the organic sealing layer and possibly reaches thehole in the lower inorganic sealing layer. In this regard, in theorganic electroluminescence display device described in JP 2013-134989A, the organic sealing layer is divided into partial areas on a pixelbasis. In the organic electroluminescence display devices described inJP 2014-154450 A and JP 2014-179278 A, the organic sealing layer isdivided into smaller partial areas. A situation in which the moisturespreads widely in the organic sealing layer is therefore avoided.

In JP 2013-134989 A, however, the organic sealing layer is so formed asto be thinner than the bank so that the organic sealing layer is nothigher than the bank or the light emitting organic layer or the upperelectrode formed above the bank. Further, since the lower inorganicsealing layer is extremely thin, the lower inorganic sealing layer isalso divided by the step between the light emitting organic layer andthe upper electrode. The structure described above is therefore unlikelyto provide sufficient sealing performance. For example, in a case whereforeign matter having a size greater than the thickness of the bank istrapped in the organic sealing layer or the lower inorganic sealinglayer, the upper inorganic sealing layer is possibly divided due to theforeign matter. Further, also in the structures described in JP2014-154450 A and JP 2014-179278 A, since the organic sealing layer isthinner than the bank, sufficient sealing performance is unlikely to beprovided.

An object of the invention is to provide an organic electroluminescencedisplay device capable of preventing moisture from widely spreading viaan organic sealing layer to improve sealing performance.

An organic electroluminescence display device according to an aspect ofthe invention includes a display area where a plurality of pixels arearranged, a plurality of lower electrodes arranged in each of theplurality of pixels, a bank that is provided between adjacent two of thepixels, covers a periphery of each of the lower electrodes, and has ashape that rises upward, a light emitting organic layer that iscontinuously placed on the plurality of lower electrodes and the bank,the light emitting organic layer having first raised sections that risein corresponding with the shape of the bank, an upper electrode that iscontinuously placed on the light emitting organic layer and is placedabove the plurality of lower electrodes and the bank, the upperelectrode having second raised sections that rise in correspondence withthe first raised sections of the light emitting organic layer, and abarrier structure that is placed on the upper electrode. The barrierstructure has a first inorganic sealing layer, a second inorganicsealing layer covering the first inorganic sealing layer, and a firstorganic sealing layer disposed between the first inorganic sealing layerand the second inorganic sealing layer and divided by the secondinorganic sealing layer for each of a plurality of partial areas thatform the display area in a plan view, and the first organic sealinglayer is thicker than the bank. The configuration described above canprevent moisture from widely spreading via the organic sealing layer,whereby the sealing performance can be improved.

An organic electroluminescence display device according to anotheraspect of the invention includes a display area where a plurality ofpixels are arranged, a plurality of lower electrodes each arranged ineach of the plurality of pixels, a bank that is provided betweenadjacent two of the pixels, covers a periphery of each of the lowerelectrodes, and has a shape that rises upward, a light emitting organiclayer that is continuously placed on the plurality of lower electrodesand the bank, the light emitting organic layer having first raisedsections that rise in corresponding with the shape of the bank, an upperelectrode that is continuously placed on the light emitting organiclayer and is placed above the plurality of lower electrodes and thebank, the upper electrode having second raised sections that rise incorrespondence with the first raised sections of the light emittingorganic layer, and a barrier structure that is placed on the upperelectrode. The barrier structure has a first inorganic sealing layer, asecond inorganic sealing layer covering the first inorganic sealinglayer, and a first organic sealing layer disposed between the firstinorganic sealing layer and the second inorganic sealing layer anddivided by the second inorganic sealing layer with respect to each of aplurality of partial areas that form the display area in a plan view,and the first inorganic sealing layer is thicker than the lowerelectrodes, the light emitting organic layer, and the upper electrode.The configuration described above can prevent moisture from widelyspreading via the organic sealing layer, whereby the sealing performancecan be improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 schematically shows the upper surface of an organicelectroluminescence display device according to an embodiment of theinvention.

FIG. 2 is an enlarged view of the upper surface within the line II-II inFIG. 1.

FIG. 3 is a cross-sectional view taken along the line in FIG. 2.

FIG. 4 schematically shows a circuit section incorporated in the organicelectroluminescence display device.

FIG. 5 shows an upper surface that is an enlarged portion of a displayarea in an organic electroluminescence display device according to afirst variation.

FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 5.

FIG. 7A shows another variation of the organic electroluminescencedisplay device according to the first variation and shows an uppersurface that is an enlarged portion of the display area.

FIG. 7B shows another variation of the organic electroluminescencedisplay device according to the first variation and shows an uppersurface that is an enlarged portion of the display area.

FIG. 7C shows another variation of the organic electroluminescencedisplay device according to the first variation and shows an uppersurface that is an enlarged portion of the display area.

FIG. 8 is a cross-sectional view of an organic electroluminescencedisplay device according to a second variation.

FIG. 9 is a cross-sectional view of an organic electroluminescencedisplay device according to a third variation.

FIG. 10 is a cross-sectional view of an organic electroluminescencedisplay device according to a fourth variation.

FIG. 11 is a cross-sectional view of an organic electroluminescencedisplay device according to a fifth variation.

DETAILED DESCRIPTION OF THE INVENTION

A form (embodiment) for implementing the invention will be describedbelow with reference to FIGS. 1 to 4. The disclosure in the presentspecification is merely an example of the invention, and appropriatechanges which keep the substance of the invention and which a personskilled in the art can readily conceive of fall within the scope of theinvention. The width, thickness, shape, and other factors of eachportion shown in the drawings are diagrammatically drawn and are notintended to limit the interpretation of the invention.

FIG. 1 schematically shows the upper surface of an organicelectroluminescence display device 1 according to the presentembodiment. FIG. 2 is an enlarged view of the upper surface within theline II-II in FIG. 1. FIG. 3 is a cross-sectional view taken along theline in FIG. 2. FIG. 4 schematically shows a circuit section Fincorporated in the organic electroluminescence display device 1. In thefollowing description, the positional relationship among components willbe described by using coordinates on an X axis (directions X1 and X2), aY axis (directions Y1 and Y2) , and a Z axis (directions Z1 and Z2).

[1. Configuration of Organic Electroluminescence Display DeviceAccording to Embodiment]

The organic electroluminescence display device 1 has a display area 3,which is an image displaying area that has a roughly rectangular shapein a plan view, as shown in FIG. 1. A flexible printed circuit (FPC)board 9 for transmitting a predetermined voltage, control signal, imagesignal, and other pieces of information is attached to the organicelectroluminescence display device 1. The organic electro luminescencedisplay device 1 receives an image signal via the flexible printedcircuit board 9 to display an image in the display area 3.

The organic electroluminescence display device 1 further has acircumferential edge area 4, which surrounds the circumferential edge ofthe display area 3, and a moisture blocking area 5, which surrounds theouter side of the circumferential edge area 4, as shown in FIG. 1. Thecircumferential edge area 4 and the moisture blocking area 5 will bedescribed later in detail.

The display area 3 is provided with a plurality of pixel areas 6, whichare secondary pixels that form a display image (hereinafter also simplyreferred to as pixels), as shown in FIG. 2. More specifically, thedisplay area 3 is provided with, as the pixel areas 6, red pixel areas6R, which output red light, green pixel areas 6G, which output greenlight, and blue pixel areas 6B, which output blue light. Although notshown, white pixel areas that output white light may be formed as thepixel areas 6. In the example shown in FIG. 2, the plurality of pixelareas 6 are arranged along the X-axis direction and the Y-axisdirection. Division lines 7 are formed between the pixel areas 6. TheDivision lines 7 are areas where a first organic sealing layer 52 isdivided. More specifically, lateral division lines 7 a, which linearlyextend along the rightward/leftward direction (X-axis direction), andlongitudinal division lines 7 b, which linearly extend along thefrontward/rearward direction (Y-axis direction), are formed. Thearrangement and positions of the plurality of pixel areas 6 are notlimited to those described above. For example, the pixel areas 6 may bearranged in a zigzag pattern in which the pixel areas 6 adjacent to eachother in the X-axis direction are shifted with respect to each other inthe Y-axis direction. The division lines 7 only need to be formed in thearea that does not overlap with the pixel areas 6.

The organic electroluminescence display device 1 has a structure inwhich a lower substrate 10 and an upper substrate 90 are bonded to eachother, as shown in FIG. 3. The space between the lower substrate 10 andthe upper substrate 90 is filled with a filler layer 40. The fillerlayer 40 may be formed, for example, by causing a transparent fillermaterial to flow into a space surrounded by a sealer 41, which functionsas a stopper. The lower substrate 10 and the upper substrate 90 form thefront surface and the rear surface of the organic electroluminescencedisplay device 1 and cover the display area 3, the circumferential edgearea 4, and the moisture blocking area 5 in a plan view. The lowersubstrate 10 and the upper substrate 90 may be made, for example, of ahard insulating material, such as a resin and a glass material, or maybemade of an insulating material having flexibility, such as a polyimide.

A variety of layers for achieving image display in the display area 3are formed above the lower substrate 10 (on the Z2-direction sidethereof). More specifically, on the lower substrate 10 are layered acircuit layer 11, a planarizing layer 12, a bank 13, lower electrodes21, alight emitting organic layer 22, and an upper electrode 23. Abarrier structure 50 is continuously placed on the upper side of theupper electrode 23. The barrier structure 50 is formed above the lowersubstrate 10.

The circuit layer 11 is layered on the upper side of the lower substrate10. A plurality of circuit sections F (see FIG. 4), each of whichcontains TFTs (thin film transistors) and capacitance, are formed in thecircuit layer 11. The circuit sections F are arranged in the positionscorresponding to the plurality of pixel areas 6 in a plan view.

The circuit section F shown in FIG. 4 controls image display in thedisplay area 3 by controlling supply of current to the lower electrodes21. Each of the circuit sections F incorporated in the circuit layer 11has, as wiring lines, a scan line Lg, which extends in the horizontaldirection, a video signal line Ld, which extends in the verticaldirection, and a power line Ls, which extends in the vertical direction.The circuit section F further has a drive TFT 111, retention capacitance112, and a switching TFT 113. The gate of the switching TFT 113 isconnected to the scan line Lg, and the drain of the switching TFT 113 isconnected to the video signal line Ld. The source of the switching TFT113 is connected to the retention capacitance 112 and the gate of thedrive TFT 111. The source of the drive TFT 111 is connected to the powerline Ls, and the corresponding lower electrode 21 is connected to thedrain of the drive TFT 111. Applying gate voltage to the scan line Lgturns on the switching TFT 113. At this point, when a video signal issupplied via the video signal line Ld, charge is accumulated in theretention capacitance 112. The accumulation of the charge in theretention capacitance 112 turns on the drive TFT 111. Current thereforeflows through the power line Ls to the lower electrode 21, the lightemitting organic layer 22, and the upper electrode 23, and the lightemitting organic layer 22 outputs light.

The planarizing layer 12 is made of an organic insulating material, suchas a resin. The planarizing layer 12 is layered on the upper side of thecircuit layer 11, as shown in FIG. 3. Contact holes that are not shownare formed in the planarizing layer 12, and the lower electrodes 21 areconnected through the holes to the circuit sections F. In the presentembodiment, the planarizing layer 12 extends to the circumferential edgearea 4, and the circuit layer 11 extends to the circumferential edgearea 4 and the moisture blocking area 5 outside the circumferential edgearea 4.

A plurality of lower electrodes 21 are made of a predeterminedconductive material. The plurality of lower electrodes 21 are arrangedon the upper side of the planarizing layer 12. The plurality of lowerelectrodes 12 are arranged in each of the plurality of pixel areas 6 ina plan view. That is, each of the lower electrodes 21 is located insidethe right and left positions (position in X-axis direction) and thefront and rear position (position in Y-axis direction) of thecorresponding pixel area 6. The lower electrodes 21 maybe formed, forexample, by forming a conductive material layer having a roughly uniformthickness on the upper side of the planarizing layer 12 and processing(etching, for example) the layer in such a way that the layer is dividedalong the boundaries between the pixel areas 6.

A conductive section 31 is made of a predetermined conductive material.The conductive section 31 is formed on the upper side of the planarizinglayer 12 in the circumferential edge area 4. The conductive section 31is formed in the layer where the lower electrodes 21 are formed, asshown in FIG. 3. The conductive section 31 may be made of the conductivematerial of which the lower electrodes 21 are made.

The bank 13 is made of an organic insulating material, such as a resin.The bank 13 is disposed between the plurality of lower electrodes 21.The bank 13 is so disposed as to surround the outer circumference ofeach of the plurality of pixel areas 6 and so disposed as to cover theperiphery of each of the lower electrodes 21 (more specifically, entirecircumference of each of lower electrodes 21). The thus disposed bank 13prevents the light emitting organic layer 22 from being divided at theedges of lower electrodes 21 adjacent to each other in correspondencewith pixel areas 6 and therefore prevents a short circuit between thelower electrodes 21 and the upper electrode 23. In the presentembodiment, the bank 13 is located between the plurality of lowerelectrodes 21. The bank 13 is placed on end portions of the lowerelectrodes 21 and has a shape that rises above the lower electrodes 21(in direction Z2). More specifically, the bank 13 is so formed as to bethicker than the lower electrodes 21. For example, the thickness of thelower electrodes 21 may be set a value ranging from 0.15 to 0.20 μm, andthe thickness of the bank 13 may be set at a value ranging from 1.00 to2.00 μm.

An edge section 32 is made of an organic insulating material, such as aresin. The edge section 32 is formed on the upper side of theplanarizing layer 12 in the circumferential edge area 4. The edgesection 32 is so provided as to be placed on end portions of theconductive section 31. A contact hole H is formed in the edge section32. The contact hole H which exposes a central portion of the conductivesection 31. The edge section 32 may be made of the insulating materialof which the bank 13 is made.

The light emitting organic layer 22 is formed on the upper side of thelower electrodes 21 and the bank 13. The light emitting organic layer 22is so provided as to be continuously placed on the lower electrodes 21and the bank 13 in a plan view, and the light emitting organic layer 22is disposed over all the pixel areas 6 in the display area 3. The lightemitting organic layer 22 shown in FIG. 3 extends beyond the displayarea 3 and reaches the circumferential edge area 4 but does not reachthe conductive section 31 disposed in the circumferential edge area 4.

The light emitting organic layer 22 outputs light of a plurality ofpixels that form a display image. The light emitting organic layer 22 isformed of a laminate of a hole injecting layer, a hole transportinglayer, a light emitting layer, an electron transporting layer, and anelectron injecting layer that are not shown. The light of the pixelsthat form a display image is outputted from a portion which forms thelight emitting organic layer 22 and through which electricity conducts.More specifically, when current flows through the lower electrodes 21,the light emitting organic layer 22, and the upper electrode 23, lightis outputted from portions of the light emitting organic layer 22 thatcorrespond to the pixel areas 6. In a case where the organicelectroluminescence display device 1 outputs light from the pixelstoward the upper substrate 90 (in a case where what is called a topemission method is employed), each of the layers disposed above thelight emitting organic layer 22 is so formed as to be transparent ortranslucent. In this case, the lower electrodes 21 may contain amaterial that reflects light, such as a metal (Ag, for example).

Further, the light emitting organic layer 22 (more specifically, lightemitting layer that is not shown but is contained in light emittingorganic layer 22) is colored in predetermined colors (three colorsincluding red, green, and blue or four colors including white inaddition to the three colors, for example) for each of the plurality ofpixel areas 6. The light emitting organic layer 22 thus colored indifferent colors allows the light outputted from each of the pluralityof pixel areas 6 to be colored. Instead of using the light emittingorganic layer 22 colored in different colors, a color filter layer thatis not shown may be formed above the light emitting organic layer 22(below upper substrate 90, for example). In this case, the color filterlayer may be provided with color filters that transmit color lightfluxes having predetermined colors corresponding to the plurality ofpixel areas 6.

The upper electrode 23 is formed on the upper side of the light emittingorganic layer 22. The upper electrode 23 is disposed above the pluralityof lower electrodes 21 and the bank 13 and so provided as to becontinuously placed on the light emitting organic layer 22. The upperelectrode 23 is disposed over the display area 3 and the circumferentialedge area 4. The upper electrode 23 may be made of a transparentconductive material, such as ITO (indium tin oxide) or IZO (indium zincoxide).

In the circumferential edge area 4, the upper electrode 23 extendsbeyond the end of the light emitting organic layer 22 to the position ofthe conductive section 31. A contact section 23 b is formed at theposition on the upper electrode 23 that corresponds to the conductivesection 31. The contact section 23 b is a portion in contact with theconductive section 31. The contact section 23 b fills the contact hole Hformed in the edge section 32, which is located in the layer where thebank 13 is located, so that the contact section 23 b is in contact withthe conductive section 31. In the example shown in FIG. 3, the contactsection 23 b is so formed as to be thicker than the upper electrode 23in the display area 3 so that the contact hole H is filled with thecontact section 23 b. The configuration described above in which theupper electrode 23 is electrically connected to the conductive section31 via the contact section 23 b allows reduction in the overall electricresistance of the upper electrode 23 and therefore guarantee of theamount of current flowing through the light emitting organic layer 22.Decrease in luminance in the display area 3 can thus be avoided.

A first insulating layer 61 and a second insulating layer 62, each ofwhich is made of an organic insulating material, such as a resin, areformed in the moisture blocking area 5, as shown in FIG. 3. The firstinsulating layer 61 is formed in the layer where the planarizing layer12 is formed, but the first insulating layer 61 is separated from theplanarizing layer 12 by a predetermined distance. The second insulatinglayer 62 is located in the layer where the bank 13 and the edge section32 are located and covers the upper side of the first insulating layer61. The second insulating layer 62 is also separated from the edgesection 32 by a predetermined distance. A first inorganic sealing layer51 is then so provided as to cover the thus divided portion of theorganic insulating layers.

Externally intruding moisture travels through a layer made of an organicmaterial, such as a resin. Providing the moisture blocking area 5, wherethe organic insulating materials are divided, can therefore prevent themoisture from intruding into the light emitting organic layer 22 or thevariety of electrodes provided in the display area 3 and thecircumferential edge area 4.

As described above, the bank 13 has a shape that rises upward (indirection Z2) beyond the lower electrodes 21 between every pair of twolower electrodes 21. The light emitting organic layer 22 has a roughlyuniform thickness in the display area 3. The light emitting organiclayer 22 has first raised sections 22 a that has a shape rising upwardin correspondence with the shape of the bank 13. The upper electrode 23similarly has a roughly uniform thickness in the display area 3. Theupper electrode 23 has second raised sections 23 a that has a shaperising upward in correspondence with the shape of the first raisedsections 22 a of the light emitting organic layer 22. The first andsecond raised sections 22 a, 23 a are formed in the positions of thebank 13 in a plan view.

Further, in the present embodiment, the light emitting organic layer 22is so formed as to be roughly as thick as the lower electrodes 21, andthe upper electrode 23 in the display area 3 is so formed as to bethinner than the lower electrodes 21. For example, with respect to thelower electrodes 21 so formed as to have the thickness ranging from 0.15to 0.20 μm, the light emitting organic layer 22 may have a thicknessranging from 0.15 to 0.30 μm, and the upper electrode 23 may have athickness ranging from 0.01 to 0.02 μm.

The barrier structure 50 for preventing air and moisture from intrudinginto the light emitting organic layer 22 or the variety of electrodes isformed on the upper side of the upper electrode 23. The barrierstructure 50 is intended to prevent oxygen and moisture from intrudinginto the upper electrode 23 or the light emitting organic layer 22 andis continuously placed on the upper electrode 23. In the presentembodiment, the barrier structure 50 has a first inorganic sealing layer51 covering the upper electrode 23, a second inorganic sealing layer 53covering the first inorganic sealing layer 51, and a first organicsealing layer 52 locating between the first inorganic sealing layer 51and the second inorganic sealing layer 53. Each of the first and secondinorganic sealing layers 51, 53 is made of an inorganic insulatingmaterial, such as SiOx or SiNy, and the first organic sealing layer 52is made of an organic insulating material, such as a resin. The firstand second inorganic sealing layers 51, 53 are intended to preventmoisture intrusion, and the first organic sealing layer 52 is intendedto cover foreign matter Dl, such as dust and dirt, trapped after theupper electrode 53 is formed.

The first inorganic sealing layer 51 continuously extends over thedisplay area 3, the circumferential edge area 4, and the moistureblocking area 5 and covers the lower substrate 10. In the display area 3and the circumferential edge area 4, the first inorganic sealing layer51 covers the upper side of the upper electrode 23 and also covers theplanarizing layer 12, which is made of an organic insulating material,and the edge section 32, which is formed in the layer where the bank 13is formed, in the circumferential edge area 4. In the moisture blockingarea 5, the first inorganic sealing layer 51 is so formed as to extendand climb over the first and second insulating layers 61, 62 and as tobe continuously placed on the circuit layer 11 in the portion where theorganic insulating layers are divided. The configuration described abovein which the inorganic sealing layer 51 covers the upper electrode 32,the planarizing layer 12, and the edge section 32 can prevent moisturefrom intruding into the layers made of organic materials.

Further, the first inorganic sealing layer 51 is so formed as to have aroughly uniform thickness, as the upper electrode 23 in the display area3, and has third raised sections 51 a, which are portions that riseupward in correspondence with the shape of the second raised sections 23a of the upper electrode 23. The first inorganic sealing layer 51 is soformed as to be thicker than the lower electrodes 21, the light emittingorganic layer 22, and the upper electrode 23. For example, with respectto the lower electrodes 21, the light emitting organic layer 22, and theupper electrode 23, each of which is so formed to have a thicknessranging from 0.01 to 0.30 μm, the thickness of the first inorganicsealing layer 51 may be set at a value ranging from 0.50 to 1.00 μm.When the first inorganic sealing layer 51 is so formed as to be thickerthan the light emitting organic layer 22 as described above, the firstinorganic sealing layer 1 can seamlessly cover the upper side of theupper electrode 23, for example, even in a case where the light emittingorganic layer 22 has a step that is large to some extent, whereby theperformance of sealing the light emitting organic layer 22 can beimproved.

The second inorganic sealing layer 53 is so disposed as to cover thefirst inorganic sealing layer 51 and continuously extends over thedisplay area 3, the circumferential edge area 4, and the moistureblocking area 5. The second inorganic sealing layer 53 divides the firstorganic sealing layer 52 at each predetermined area. At the divisionlines 7, where the first organic sealing layer 52 is divided, the secondinorganic sealing layer 53 is in contact with the first inorganicsealing layer 51. The second inorganic sealing layer 53 has, incorrespondence with the shape of the first organic sealing layer 52provided in each of the plurality of pixel electrodes 6, a shape thatrises upward in the pixel area 6. The second inorganic sealing layer 53may be as thick as the first inorganic sealing layer 51 or may bethicker than the first inorganic sealing layer 51. For example, withrespect to the first inorganic sealing layer 51 so formed as to have thethickness ranging from 0.50 to 1.00 μm, the thickness of the secondinorganic sealing layer 53 may be set at a value ranging from 1.00 to2.00 μm. Increasing the thickness of the second inorganic sealing layer53 can prevent the second inorganic sealing layer 53 from being dividedor broken, whereby the performance of sealing the light emitting organiclayer 22 can be improved.

The first organic sealing layer 52 is disposed between the firstinorganic sealing layer 51 and the second inorganic sealing layer 53 inthe upward/downward direction (Z-axis direction). For example, when theforeign matter D1 is trapped after the upper electrode 23 is formed, thefirst inorganic sealing layer 51 is divided or becomes thinner than theother portions at the location where the foreign matter D1 adheres, andthe sealing performance of the first inorganic sealing layer 51therefore lowers. Even in this case, since the first organic sealinglayer 52 covers the foreign matter Dl, and the second inorganic sealinglayer 53 is formed above the first organic sealing layer 52, theperformance of sealing the light emitting organic layer 22 can beimproved.

Further, the first organic sealing layer 52 is divided by the secondinorganic sealing layer 53 at each predetermined area that forms thedisplay area 3 in a plan view. The first organic sealing layer 52 isdivided at the division lines 7. More specifically, the first organicsealing layer 52 is divided at the positions where the bank 13 isdisposed. In the present embodiment, the first organic sealing layer 52is divided for each of the pixel areas 6, as shown in FIG. 3. The firstorganic sealing layer 52 may be formed, for example, by covering theupper side of the first inorganic sealing layer 51 with an organicinsulating material and then irradiating the organic insulating materialwith light, such as a laser beam, to divide the organic insulatingmaterial into a plurality of areas. Dividing the first organic sealinglayer 52 into a plurality of areas as described above prevents moisturefrom widely spreading via the first organic sealing layer 52.

For example, when foreign matter D2 is trapped in the second inorganicsealing layer 53, a hole is formed around the foreign matter D2 in somecases. When moisture intrudes through the hole, the moisture spreads inthe first organic sealing layer 52 and reaches the first inorganicsealing layer 51 below the first organic sealing layer 52. If the firstorganic sealing layer 52 is not divided into a plurality of areas, themoisture having intruded through the hole in the second inorganicsealing layer 53 travels in the first organic sealing layer 52 in therightward leftward direction (X-axis direction in FIG. 3, for example)and undesirably spreads over the entire display area 3. In this case,the moisture is also transported to the foreign matter D1 trapped in aposition different from the position of the foreign matter D2 andundesirably intrudes into the upper electrode 23 and the light emittingorganic layer 22 through the hole formed around the foreign matter D1 inthe first inorganic sealing layer 51. The light emitting organic layer22 is degraded due to the moisture having thus intruded therein to,resulting in a problem, such as creation of an area incapable ofoutputting light (light emission defective area) in the display area 3.

To avoid the problem described above, the first organic sealing layer 52formed between the foreign matter D1 and foreign matter D2 is divided bythe second inorganic sealing layer 53 to prevent the moisture fromwidely spreading in the first organic sealing layer 52. The moisturehaving intruded along the circumference of the foreign matter D2 isblocked by the second inorganic sealing layer 53 and cannot thereforereach the foreign matter Dl or therearound. That is, intrusion of themoisture to the upper electrode 23 or the light emitting organic layer22 can be avoided. In a case where the position of the foreign matter D1trapped in the first inorganic sealing layer 51 roughly coincides withthe position of the foreign matter D2 trapped in the second inorganicsealing layer 53 in a plan view (in a case where foreign matter Dl andforeign matter D2 is trapped in the same pixel area 6), the moisturehaving intruded via the foreign matter D2 undesirably reaches theforeign matter D1, but the probability of intrusion of the foreignmatter D1 and the foreign matter D2 into roughly the same portion isextremely low. Dividing the first organic sealing layer 52 thereforeallows the probability of intrusion of moisture into the upper electrode23 and the light emitting organic layer 22 to be greatly lowered.

Further, the first organic sealing layer 52 is so formed as to bethicker than the bank 13. As a result, an upper surface 52 a of thefirst organic sealing layer 52 is located above the second and thirdraised sections 23 a, 51 a, which are raised in correspondence with theshape of the bank 13.

For example, with respect to the bank 13 so formed as to have thethickness ranging from 1.00 to 2.00 μm, the thickness of the firstorganic sealing layer 52 may be set at a value ranging from 40.00 to50.00 μm.

The configuration described above in which the thick first organicsealing layer 52 is formed allows the first organic sealing layer 52 tocover the foreign matter Dl, for example, even in a case where foreignmatter D1 having a size greater than the thickness of the bank 13 istrapped in the first inorganic sealing layer 51, whereby a situation inwhich the foreign matter D1 divides the second inorganic sealing layer53 can be avoided. Further, since the first organic sealing layer 52 cansufficiently cover the foreign matter D1, the upper surface 52 a of eachof the divided first organic sealing layers 52 can be planarized, and anupper surface 53 a of the second inorganic sealing layer 53, which isplaced on the upper surfaces 52 a, can also be planarized with noinclination in the upward/downward direction (Z-axis direction). Sincethe second inorganic sealing layer 53 is formed with no inclination, thethickness of the second inorganic sealing layer 53 is made uniform,whereby external intrusion of moisture and oxygen can be avoided.

The first organic sealing layer 52 is also formed in the circumferentialedge area 4. The first organic sealing layer 52 in the circumferentialedge area 4 covers the contact hole H and the layers formed therearound.The first organic sealing layer 52 in the circumferential edge area 4may not necessarily be divided.

Further, the first organic sealing layer 52 is isolated from the fillerlayer 40 by the first inorganic sealing layer 51 and the secondinorganic sealing layer 53 in the area outside the display area 3. Thatis, no first organic sealing layer 52 is formed in the moisture blockingarea 5, and the first inorganic sealing layer 51 and the secondinorganic sealing layer 53 are in contact with each other. Providing aportion where no layer made of an organic material is formed asdescribed above can prevent moisture from externally passing through anorganic layer and intruding into the light emitting organic layer 22 orthe variety of electrodes.

As described above, in the present embodiment, since the first organicsealing layer 52 in the barrier structure 50 is divided at eachpredetermined area (for each of pixel areas 6, for example), a situationin which moisture widely spreads in the first organic sealing layer 52is avoided. Further, since the first organic sealing layer 52 is soformed as to be thicker than the bank 13, the foreign matter D1 trappedin the first inorganic sealing layer 51 can be reliably covered, wherebyformation of a hole in the second inorganic sealing layer 53 resultingfrom the foreign matter D1 can be avoided. Moreover, since the firstinorganic sealing layer 51 is also so formed as to be thicker than thelower electrodes 21, the light emitting organic layer 22, and the upperelectrode 23, the first inorganic sealing layer 51 can seamlessly coverthe upper side of the upper electrode 23 even in a case where the lightemitting organic layer 22 has a step that is large to some extent,whereby the performance of sealing the light emitting organic layer 22can be improved.

[2. Variations]

The invention is not limited to the embodiment described above, and avariety of changes may be made thereto. Other exemplary forms(variations) for implementing the invention will be described below.

[2-1. First Variation]

A first variation will be described below with reference to FIGS. 5 and6. FIG. 5 shows an upper surface that is an enlarged portion of thedisplay area 3 in an organic electroluminescence display device 1according to the first variation. FIG. 6 is a cross-sectional view takenalong the line VI-VI in FIG. 5.

The above embodiment has been described with reference to the case wherethe first organic sealing layer 52 contained in the barrier structure 50is divided for each of the pixel areas 6 in a plan view, but notnecessarily, and the first organic sealing layer maybe divided for eachset of a plurality of the pixel areas 6. In other words, the displayarea 3 includes a plurality of sub areas including a plurality of thepixel areas 6, and the first organic sealing layer 52 is divided foreach of the plurality of the sub areas in the plain view.

In a barrier structure 1050 according to the present variation, a firstorganic sealing layer 1052 is divided by a first inorganic sealing layer1051 and a second inorganic sealing layer 1053 for each set of aplurality of the pixel areas 6, as shown in FIGS. 5 and 6. In theexample shown in FIG. 5, the first organic sealing layer 1052 is dividedfor each set of three pixel areas 6. More specifically, the firstorganic sealing layer 1052 is divided for each set of three pixel areas6 including one red pixel area 6R, one green pixel area 6G, and one bluepixel area 6B. A division line 1007 is an area where the first organicsealing layer 1052 is divided (more specifically, longitudinal divisionline 1007 b linearly extending along frontward/rearward direction(Y-axis direction)). The division line 1007 is disposed in the thirdinter-pixel area 6 counted from the inter-pixel area 6 where thepreceding division line 1007 is disposed.

Although not shown, white pixel areas that output white light may beformed as part of the pixel areas 6. In this case, the first organicsealing layer 1052 may be divided for each set of four pixel areas 6including one red pixel area 6R, one green pixel area 6G, one blue pixelarea 6B, and one white pixel area. In a case where one primary pixel isformed of a red pixel area 6R, a green pixel area 6G, and a blue pixelarea 6B (as well as white pixel area), the division lines 1007 may be soformed as to surround the primary pixels. That is, the division lines1007 may be formed for each set of a plurality of the primary pixelsformed in the display area 3.

FIGS. 7A to 7C show other variations of the organic electroluminescencedisplay device 1 according to the first variation and each show an uppersurface that is an enlarged portion of the display area 3. In theexample shown in FIG. 7A, division lines 2007, which are areas where thefirst organic sealing layer 1052 is divided, extend along therightward/leftward direction (X-axis direction). In this case, thedivision lines 2007 do not necessarily extend in the rightward/leftwarddirection (X-axis direction), and division lines 2007 that cross theentire first organic sealing layer may divide the first organic sealinglayer into a plurality of areas. The division lines 2007 may notnecessarily be located between all pixel areas 6 adjacent in theupward/downward direction and may be disposed for each set of aplurality of the pixel areas 6 in the upward/downward direction.

In the example shown in FIG. 7B, division lines 3007 extend along thefrontward/rearward direction (Y-axis direction). The division lines 3007do not necessarily extend in the frontward/rearward direction (Y-axisdirection). Further, in the example shown in FIG. 7B, a plurality of redpixel areas 6R are arranged along the frontward/rearward direction, andthe green pixel areas 6G and the blue pixel areas 6B are similarlyarranged in the frontward/rearward direction. Therefore, the divisionlines 3007 disposed between the pixel areas 6 adjacent in therightward/leftward direction divide the first organic sealing layer foreach of the colors of the pixel area 6.

As shown in FIG. 7C, the lateral division lines 4007 a, which extendalong the rightward/leftward direction, and the longitudinal divisionlines 4007 b, which extend in the frontward/rearward direction, may bedisposed for each set of a plurality of the pixel areas 6. For example,in a case where the lateral division lines 4007 a are disposed for eachset of M (three in the example shown in FIG. 7C) pixel areas 6 and thelongitudinal division lines 4007 b are disposed for each set of N (threein the example shown in FIG. 7C) pixel areas 6, the first organicsealing layer is divided for each set of M×N (nine in the example shownin FIG. 7C) pixel areas 6.

Also in the variations described above, in which the first organicsealing layer is divided for each set of a plurality of the pixel areas6, travel of moisture can be blocked at the locations where the firstorganic sealing layer is divided, whereby a situation in which themoisture widely spreads via the first organic sealing layer can beavoided. In the case where the first organic sealing layer is dividedfor each set of a plurality of the pixel areas 6, and the formation ofthe divided portions is performed, for example, by using a laser beam,the period of the formation can be shortened.

[2-2. Second Variation]

A second variation will be described below with reference to FIG. 8.FIG. 8 is a cross-sectional view of an organic electroluminescencedisplay device 1 according to the second variation and corresponds tothe cross-sectional view of FIG. 3 shown in the embodiment.

In a barrier structure 2050 according to the present variation, a firstinorganic sealing layer 2051, a first organic sealing layer 2052, and asecond inorganic sealing layer 2053, which are the same as those in theembodiment, are layered on each other, and a second organic sealinglayer 2054, which is formed on the upper side of the second inorganicsealing layer 2053, and a third inorganic sealing layer 2055, which isformed on the upper side of the second organic sealing layer 2054, areformed as shown in FIG. 8. The third inorganic sealing layer 2055 is sodisposed as to cover the second inorganic sealing layer 2053, and thesecond organic sealing layer 2054 is disposed between the secondinorganic sealing layer 2053 and the third inorganic sealing layer 2055.

The second organic sealing layer 2054 is made of an organic insulatingmaterial, such as a resin. The second organic sealing layer 2054 iscontinuously placed on the second inorganic sealing layer 2053 andcovers the second inorganic sealing layer 2053 in the display area 3 andthe circumferential edge area 4. In the present variation, the secondorganic sealing layer 2054 is so formed that the second organic sealinglayer 2054 fills the portions where the first organic sealing layer 2052is divided and covers the second inorganic sealing layer 2053 and thatan upper surface 2054 a extending over the display area 3 and thecircumferential edge area 4 is planarized. Further, the second organicsealing layer 2054 extends beyond the end of the first organic sealinglayer 2052 to a point close to the first and second insulating layers61, 62.

The third inorganic sealing layer 2055 is made of an inorganicinsulating material, such as SiOx or SiNy. The third inorganic sealinglayer 2055 is continuously placed on the second inorganic sealing layer2053 and covers the second inorganic sealing layer 2053 in the displayarea 3 and the circumferential edge area 4. Further, the third inorganicsealing layer 2055 is in contact with the second inorganic sealing layer2053 in the portion which is outside the circumferential edge area 4 andwhere no second organic sealing layer 2054 is formed. In the moistureblocking area 5, the second organic sealing layer 2054 is isolated fromthe filler layer that is not shown by the second inorganic sealing layer2053 and the third inorganic sealing layer 2055. Isolating the secondorganic sealing layer 2054 made of an organic material can preventmoisture from externally passing through the organic layer and intrudinginto the light emitting organic layer 22 or the variety of electrodes.

In addition to the three layers formed of the first inorganic sealinglayer 2051, the first organic sealing layer 2052, and the secondinorganic sealing layer 2053, further layering the two layers formed ofthe second organic sealing layer 2054 and the third inorganic sealinglayer 2055 as described above allows further improvement in theperformance of sealing the light emitting organic layer 22. That is, thesecond organic sealing layer 2054 can cover the foreign matter D2, whichadheres to the second inorganic sealing layer 2053, and the thirdinorganic sealing layer 2055 can prevent moisture from intruding into ahole or any other defect formed in the second organic sealing layer 2054or the second inorganic sealing layer 2053. The second organic sealinglayer 2054, which is continuously formed in the display area 3 asdescribed above, absorbs bending stress produced in a case where theorganic electroluminescence display device 1 is a flexible display andwhen the organic electroluminescence display device 1 is bent, whereby asituation in which an inner film in the organic electroluminescencedisplay device 1 breaks or peels off can be avoided.

[2-3. Third Variation]

A third variation will be described below with reference to FIG. 9. FIG.9 is a cross-sectional view of an organic electroluminescence displaydevice 1 according to the third variation and corresponds to thecross-sectional view of FIG. 3 shown in the embodiment.

A barrier structure 3050 according to the present variation includes afirst inorganic sealing layer 3051, a first organic sealing layer 3052,a second inorganic sealing layer 3053, a second organic sealing layer3054, and a third inorganic sealing layer 3055, as in the secondvariation, as shown in FIG. 9. The second organic sealing layer 3054according to the present variation differs from the second organicsealing layer 2054 in the second variation in that the second organicsealing layer 3054 is divided by the third inorganic sealing layer 3055at each predetermined area.

More specifically, the second organic sealing layer 3054 is divided atthe positions where the bank 13 is disposed (that is, along boundariesbetween two adjacent pixel areas 6), as the first organic sealing layer3052 is. Further, at the locations where the second organic sealinglayer 3054 is divided, the third inorganic sealing layer 3055 is incontact with the second inorganic sealing layer 3053. Dividing thesecond organic sealing layer 3054 into a plurality of areas as describedabove can prevent moisture from widely spreading via the second organicsealing layer 3054.

In the example shown in FIG. 9, the second organic sealing layer 3054 isdivided at all locations where the first organic sealing layer 3052 isdivided, but the second organic sealing layer 3054 may not necessarilybe divided at the locations where the first organic sealing layer 3052is divided. For example, in the case where the first organic sealinglayer 3052 is divided for each set of three pixel areas 6, as in thefirst variation, the second organic sealing layer 3054 may be dividedfor each set of six pixel areas 6, which is a multiple of three or maybe divided for each set of nine pixel areas 6, which is also a multipleof three.

[2-4. Fourth Variation]

A fourth variation will be described below with reference to FIG. 10.FIG. 10 is a cross-sectional view of an organic electroluminescencedisplay device 1 according to the fourth variation and corresponds tothe cross-sectional view of FIG. 3 shown in the embodiment.

In a barrier structure 4050 according to the present variation, below afirst inorganic sealing layer 4051, a first organic sealing layer 4052,and a second inorganic sealing layer 4053 (on Z1-direction side), asecond organic sealing layer 4054 and a third inorganic sealing layer4055 are formed, as shown in FIG. 10. More specifically, the barrierstructure 4050 includes the third inorganic sealing layer 4055, which isso disposed to cover the first inorganic sealing layer 4051, and thesecond organic sealing layer 4054, which is disposed between the firstinorganic sealing layer 4051 and the third inorganic sealing layer 4055.

In the present variation, the layers described above are so formed thatthe third inorganic sealing layer 4055 is placed on the upper electrode23, and that the second organic sealing layer 4054, the first inorganicsealing layer 4051, the first organic sealing layer 4052, and the secondinorganic sealing layer 4053 are sequentially placed on the thirdinorganic sealing layer 4055. The first to third inorganic sealing layer4051, 4053, 4055 continuously extend over the display area 3, thecircumferential edge area 4, and the moisture blocking area 5.

Further, in the present variation, the second organic sealing layer 4054is not divided in the display area 3, and the first organic sealinglayer 4052, which is formed above the second organic sealing layer 4054,is divided by the first inorganic sealing layer 4051 and the secondinorganic sealing layer 4053 in the positions where the bank 13 isdisposed. Dividing the first organic sealing layer 4052 into a pluralityof areas as described above prevents moisture having intruded into thefirst organic sealing layer 4052 from reaching the portion below thefirst inorganic sealing layer 4051. In other words, as long as the firstorganic sealing layer 4052 is divided into a plurality of areas, even inthe case where the second organic sealing layer 4054 located below thefirst organic sealing layer 4052 is not divided into a plurality ofareas, a situation in which moisture intrudes into the upper electrode23 and the light emitting organic layer 22 can be avoided. Further, thesecond organic sealing layer 4054, which is continuously formed in thedisplay area 3, absorbs bending stress produced in the case where theorganic electroluminescence display device 1 is a flexible display andwhen the organic electroluminescence display device 1 is bent, whereby asituation in which an inner film in the organic electro luminescencedisplay device 1 breaks or peels off can be avoided.

[2-5. Fifth Variation]

A fifth variation will be described below with reference to FIG. 11.FIG. 11 is a cross-sectional view of an organic electroluminescencedisplay device 1 according to the fifth variation.

In the present variation, a light emitting organic layer 5022, which isformed on lower electrodes 5021 and a bank 5013, is climbing an endportion of the adjacent light emitting organic layer 5022, and the stepproduced by the climbing light emitting organic layer divides an upperelectrode 5023, which is disposed on the upper side of the lightemitting organic layers 5022, into a plurality of areas. Further, as abarrier structure 5050, a first inorganic sealing layer 5051 and a firstorganic sealing layer 5052 are so layered on each other as to fillrecesses C1 formed above the upper electrode 5023 formed incorrespondence with the shape of the bank 5013, and a second inorganicsealing layer 5053 is so formed as to cover the first organic sealinglayer 5052. Further, a second organic sealing layer 5054 is so formed asto fill recesses C2 formed by the light emitting organic layers 5022,each of which is climbing the end portion of the adjacent light emittingorganic layer 5022, and the second inorganic sealing layer 5053, whichis placed on the climbing portions, and a third inorganic sealing layer5055 covers the second organic sealing layer 5054.

In a case where the first to third inorganic sealing layers 5051, 5053,and 5055 are very thin, the inorganic sealing layers described above arealso undesirably divided by the steps produced by the light emittingorganic layer 5022 and the upper electrode 5023, and sufficient sealingperformance is not possibly provided.

To avoid the problem described above, a third organic sealing layer5058, which is thicker than the bank 5013, and a fourth inorganicsealing layer 5059, which is thicker than the light emitting organiclayer 5022, are placed on the third inorganic sealing layer 5055, andthe third organic sealing layer 5058 is divided by the fourth inorganicsealing layer 5059 in the positions where the bank 5013 is formed forfurther improvement in the performance of sealing the light emittingorganic layer 5022. That is, increasing the thickness of the fourthinorganic sealing layer 5059 can prevent the fourth inorganic sealinglayer 5059 from being divided by the steps produced by the lightemitting organic layer 5022 and the upper electrode 5023. Further,increasing the thickness of the third organic sealing layer 5058 allowsforeign matter having a size greater than the thickness of the bank 5013to be covered. Moreover, dividing the third organic sealing layer 5058into a plurality of areas can prevent moisture from widely spreading inthe third organic sealing layer 5058, whereby a situation in which themoisture intrudes into the upper electrode 5023 and the light emittingorganic layer 5022 can be avoided.

While there have been described what are at present considered to becertain embodiments of the invention, it will be understood that variousmodifications may be made thereto, and it is intended that the appendedclaim cover all such modifications as fall within the true spirit andscope of the invention.

What is claimed is:
 1. An organic electroluminescence display devicecomprising: a display area where a plurality of pixels are arranged; aplurality of lower electrodes each arranged in each of the plurality ofpixels; a bank that is provided between adjacent two of the pixels,covers a periphery of each of the lower electrodes, and has a shape thatrises upward; a light emitting organic layer that is continuously placedon the plurality of lower electrodes and the bank, the light emittingorganic layer having first raised sections that rise in correspondingwith the shape of the bank; an upper electrode that is continuouslyplaced on the light emitting organic layer and is placed above theplurality of lower electrodes and the bank, the upper electrode havingsecond raised sections that rise in correspondence with the first raisedsections of the light emitting organic layer; and a barrier structurethat is placed on the upper electrode, wherein the barrier structure hasa first inorganic sealing layer, a second inorganic sealing layercovering the first inorganic sealing layer, and a first organic sealinglayer disposed between the first inorganic sealing layer and the secondinorganic sealing layer and divided by the second inorganic sealinglayer with respect to each of a plurality of partial areas that form thedisplay area in a plan view, and the first organic sealing layer isthicker than the bank.
 2. The organic electroluminescence display deviceaccording to claim 1, wherein the first organic sealing layer is dividedat a position where the bank is disposed in the plan view.
 3. Theorganic electroluminescence display device according to claim 2, whereinthe display area including a plurality of sub areas including aplurality of the pixels, the first organic sealing layer is divided foreach of the plurality of the sub areas in the plan view.
 4. The organicelectroluminescence display device according to claim 1, wherein thebarrier structure further has a third inorganic sealing layer coveringthe second inorganic sealing layer, and a second organic sealing layerdisposed between the second inorganic sealing layer and the thirdinorganic sealing layer.
 5. The organic electroluminescence displaydevice according to claim 4, wherein the second organic sealing layer isdivided by the third inorganic sealing layer with respect to each of theplurality of partial areas that form the display area in the plan view.6. The organic electroluminescence display device according to claim 5,wherein the second organic sealing layer is divided at a position wherethe bank is disposed in the plan view.
 7. The organicelectroluminescence display device according to claim 1, wherein thebarrier structure further has a third inorganic sealing layer coveringthe first inorganic sealing layer, and a second organic sealing layerdisposed between the first inorganic sealing layer and the thirdinorganic sealing layer.
 8. The organic electroluminescence displaydevice according to claim 1, wherein the first organic sealing layer isisolated by the first inorganic sealing layer and the second inorganicsealing layer in an area outside the display area.
 9. An organicelectroluminescence display device comprising: a display area where aplurality of pixels are arranged; a plurality of lower electrodes eacharranged in each of the plurality of pixels; a bank that is providedbetween adjacent two of the pixels, covers a periphery of each of thelower electrodes, and has a shape that rises upward; a light emittingorganic layer that is continuously placed on the plurality of lowerelectrodes and the bank , the light emitting organic layer having firstraised sections that rise in corresponding with the shape of the bank;an upper electrode that is continuously placed on the light emittingorganic layer and is placed above the plurality of lower electrodes andthe bank, the upper electrode having second raised sections that rise incorrespondence with the first raised sections of the light emittingorganic layer; and a barrier structure that is placed on the upperelectrode, wherein the barrier structure has a first inorganic sealinglayer, a second inorganic sealing layer covering the first inorganicsealing layer, and a first organic sealing layer disposed between thefirst inorganic sealing layer and the second inorganic sealing layer anddivided by the second inorganic sealing layer with respect to each of aplurality of partial areas that form the display area in a plan view,and the first inorganic sealing layer is thicker than the lowerelectrodes, the light emitting organic layer, and the upper electrode.